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Acid soil conditioner as well as preparation method and application thereof

A technology of acidic soil and improver, which is applied in the direction of biochemical equipment and methods, applications, soil conditioning materials, etc., can solve problems such as difficult to achieve both symptoms and root causes, single effect, and secondary hazards, so as to promote improvement effects and improve medium and ability, the effect of improving fertility

Pending Publication Date: 2021-11-16
VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of acidic soil currently uses chemical methods to neutralize the pH of the soil, or the method of throwing lime, which can effectively improve the acidity of the soil in the short term, but long-term use of this method will lead to compaction of the soil. It will lead to a serious imbalance of calcium, magnesium, potassium and other elements, inhibit the activity of soil microorganisms, and reduce crop yields
Therefore, the currently disclosed acidic soil amendments have a single effect and are prone to secondary hazards, making it difficult to treat both symptoms and root causes.

Method used

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  • Acid soil conditioner as well as preparation method and application thereof

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preparation example Construction

[0024] The present invention also provides a preparation method of the above-mentioned improver, comprising the following steps: mixing biochar, composite microbial agent, humic acid, animal manure and crushed quicklime with straw, and controlling the moisture content of the mixture to be 12- 30%, fermented at 33-38°C for 6-8 days, dried to constant weight under natural conditions, and crushed to obtain the improver.

[0025] In the present invention, there is no special limitation on the crushing method of quicklime and straw, and the conventional method of crushing quicklime and straw in the field can be adopted. In the present invention, after the quicklime is crushed, it is preferably passed through a 200-400 mesh sieve, and the crushed particle size of the straw is preferably 5-10mm. The moisture content of the mixture is preferably 15-25%, more preferably 20-22%. In the present invention, the temperature of the fermentation is preferably 35-37°C, more preferably 36°C, a...

Embodiment 1

[0034] Take quicklime, crush it and pass it through a 200-mesh sieve to get quicklime powder; take wheat straw and grind it to 5mm to get wheat straw powder.

[0035]Corn stalks were crushed to 10 mm, cracked at 150°C for 1 hour, then the temperature was raised to 400°C, and ammonia gas was continuously fed in, and biochar was obtained after activation for 4 hours.

[0036] Inoculate the complex bacteria of yeast and Bacillus subtilis with a mass ratio of 1:3 into the liquid fermentation medium (sucrose 10g / L, beef extract 10g / L, corn flour 20g / L, NaCl 10g / L, water), Cultivate at 32°C and 150r / min for 24 hours to obtain a complex bacterial fermentation liquid, and air-dry under natural conditions until the total number of effective viable bacteria is not less than 100 million / g to obtain a complex microbial agent.

[0037] Mix 10kg of wheat straw powder, 2kg of quicklime powder, 9kg of biochar, 0.5kg of compound microbial agent, 20kg of peat-derived humic acid and 8kg of pig m...

Embodiment 2

[0039] Take quicklime, crush it and pass it through a 400-mesh sieve to get quicklime powder; take peanut straw and grind it to 10mm to get peanut straw powder.

[0040] Corn stalks were crushed to 15mm, cracked at 280°C for 2 hours, then the temperature was raised to 580°C, and ammonia gas was continuously fed in, and biochar was obtained after activation for 5 hours.

[0041] The compound bacteria of yeast and Bacillus subtilis that mass ratio is 2:7 is inoculated in the liquid fermentation medium (sucrose 15g / L, beef extract 15g / L, corn flour 30g / L, NaCl 15g / L, water), Cultivate at 35°C and 200r / min for 42 hours to obtain a complex bacterial fermentation liquid, and air-dry under natural conditions until the total number of effective viable bacteria is not less than 100 million / g to obtain a complex microbial agent.

[0042] After mixing 30kg of peanut straw powder, 10kg of quicklime powder, 25kg of biochar, 1kg of compound microbial agent, 40kg of weathered coal-derived hu...

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Abstract

The invention provides an acid soil conditioner as well as a preparation method and application thereof, and belongs to the technical field of soil conditioners. The acid soil conditioner provided by the invention comprises the following raw materials in parts by weight: 2-10 parts of quicklime, 9-25 parts of charcoal, 0.5-1 part of a compound microbial agent, 20-40 parts of humic acid, 8-40 parts of animal waste and 10-30 parts of straw, and the total number of effective viable bacteria in the compound microbial agent is not less than 0.1 billion / g. The acid soil conditioner provided by the invention can comprehensively improve acid soil, increase the content of organic matters in the acid soil, promote the yield increase of crops and solve the problem of resource utilization of wastes in the breeding industry and agriculture, the raw materials are easy to obtain, the preparation process is simple, and popularization is facilitated.

Description

technical field [0001] The invention belongs to the technical field of soil improvers, in particular to an acidic soil improver and its preparation method and application. Background technique [0002] The normal growth and development of plants depends on a good soil environment. But in nature, there are often various obstacles in the soil where plants grow, such as acidic soil, which restricts plant growth. Because protons in soil participate in almost all chemical reaction cycles, soil acidification will cause the balance of protons to be broken, thereby affecting the transformation of soil element forms. Generally speaking, the pH of the soil suitable for most crops is between slightly acidic and neutral. Although different crops have different tolerances to soil pH, soil acidification still significantly affects the normal growth and development of plant roots. The harm of low soil pH mainly directly affects the normal growth and development of plants by directly aff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C12N1/20C12N1/16C01B32/05C05F17/20C05F17/70C05G3/80C12R1/125C12R1/645C09K109/00C09K101/00
CPCC09K17/40C12N1/20C12N1/16C01B32/05C05F17/20C05F17/70C05G3/80C05D3/02C09K2109/00C09K2101/00C05D9/00C05F3/00C05F11/00C05F11/02Y02W30/40
Inventor 马征沈玉文杨正涛郑福丽董晓霞
Owner VEGETABLE RES INST OF SHANDONG ACADEMY OF AGRI SCI
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